Wondering if it is only the formulae of quantum mechanics that routinely include complex numbers (a real component plus an imaginary one, e.g.(adsbygoogle = window.adsbygoogle || []).push({}); (the square root of -1)). If so, doesn't this immediately suggest (or even demand) that the (un)reality of the quantum realm is fundamentally unlike the classical one we experience?i

thanks!

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# Are there 'complex' numbers in classical mechanics?

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